class XiyoujiRenwu {
    float height,weight;
    String head, ear;
    void speak(String s) {
       System.out.println(s);
    }
}
public class Example4_1 {
    public static void main(String args[]) {
        XiyoujiRenwu  zhubajie;       //声明对象
        zhubajie = new XiyoujiRenwu(); //为对象分配变量(使用new和默认的构造方法)
    }
}